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| 玉米植株冠层截留分异特征及其影响因素 | |
| 引用本文： | 郑子成,李廷轩,张锡洲,王永东,林超文.玉米植株冠层截留分异特征及其影响因素[J].水土保持学报,2012,26(4):208-211,215. |
| 作者姓名： | 郑子成 李廷轩 张锡洲 王永东 林超文 |
| 作者单位： | 1. 四川农业大学资源环境学院,成都611130／黄土高原土壤侵蚀与旱地农业国家重点实验窒,中国科学院水利部水土保持研究所,陕西杨凌712100 2. 四川农业大学资源环境学院,成都,611130 3. 四川省农业科学研究院土壤肥料研究所,成都,610066 |
| 基金项目： | 国家自然科学基金项目(40901138);国家科技支撑计划项目(2008BAD98B03);四川省科技厅应用基础项目(2008JY0022);黄土高原土壤侵蚀与旱地农业国家重点实验室项目(10501-283);中国科学院山地灾害与地表过程重点实验室开放研究项目(2008) |
| 摘 要： | 基于研究区实际降雨频率,采用人工模拟降雨法对玉米全生育期冠层截留量、茎秆流量和穿透雨量进行测定,分析叶面积和降雨强度对玉米植株冠层截留分异特征的影响。结果表明:不同生育期,玉米冠层截留率平均为8.42%,茎秆流率平均为35.38%,穿透雨率平均为56.19%;不同降雨强度,玉米冠层截留率平均为7.53%,茎秆流率平均为26.79%,穿透雨率平均为65.68%。冠层截留量、茎秆流量和穿透雨量与雨强呈极显著线性正相关关系,冠层截留量和茎秆流量与叶面积之间呈极显著正相关直线关系,而穿透雨量与叶面积之间呈极显著线性负相关关系。 |
| 关 键 词： | 玉米 全生育期 降雨强度 截留分异特征 |
Differentiation Characteristics and Influencing Factors of Rainfall Interception in Maize Plants |
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| ZHENG Zi-cheng,LI Ting-xuan,ZHANG Xi-zhou,WANG Yong-dong,LIN Chao-wen.Differentiation Characteristics and Influencing Factors of Rainfall Interception in Maize Plants[J].Journal of Soil and Water Conservation,2012,26(4):208-211,215. | |
| Authors: | ZHENG Zi-cheng LI Ting-xuan ZHANG Xi-zhou WANG Yong-dong LIN Chao-wen |
| Institution: | 1.College of Resources and Environment,Sichuan Agricultural University,Chengdu 611130; 2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Institute of Water and Soil Conservation,Chinese Academy of Sciences and Ministry of Water Resources, Yangling,Shaanxi 712100;3.Soil and Fertilizer Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066) |
| Abstract: | Based on actual rainfall intensity of the studied area,rainfall simulator was used to measured corn canopy interception,throughfall and stemflow in the whole growth period.Differentiation characteristics were analyzed by leaf area and rainfall intensity.The results showed that canopy interception capacity was different.Under different growth periods,the average of canopy interception,stemflow and throughfall amounts were 8.42%,35.38% and 56.19%,respectively.Under different rainfall intensity,the average of canopy interception,stemflow and throughfall amounts were 7.53%,26.79% and 65.68%,respectively.Interception,stemflow and throughfall amounts were statistically significant positive correlated with rain intensity.Interception and stemflow amounts were statistically significant positive correlated with leaf area,while throughfall amounts had statistically significant negative relationship with leaf area. |
| Keywords: | maize the whole growth period rainfall intensity differentiation characteristics of rainfall interception |
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